As the spatter flys out of the vent it cools further and then piles up along the margin of the vent or fissure. The result is a built up spatter cone.
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| Spatter cones are piles of viscous partially cooled lava that erupt from small vents or fissures towards the end of an eruption cycle.
As the spatter flys out of the vent it cools further and then piles up along the margin of the vent or fissure. The result is a built up spatter cone. |
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